Bar translucency gone in iOS 7.0.3

Question

Compare the two screenshots:

Done on iOS 7.0 simulator

And the one

Answer 1

OK, so after having played around with the colours a bit more, I managed to get a similar sort of appearance with the blur!

Previously, I was setting a barTintColor on the navigation bar appearance which had the following values:

R:17 G:63 B:95 A:1

This was fine in iOS < 7.0.3, and the output color in the nav bar (with the blur effect) was actually:

R:62 G:89 B:109

Since iOS 7.0.3, the barTintColor seems to take into account the alpha value of the color we set. This meant that the nav bar was actually outputting a solid color 17,63,95, and there was no blur effect.

The key to getting the blur effect back is setting an alpha < 1 in the barTintColor.

After lots of guess work and trying different RGB values, I managed to get the exact same RGB output from the nav (and tab) bar, using the following RGBA:

R:4.5 G:61.6 B:98 A:0.65

It does not look like there's a magic ratio to apply to the previous color to obtain the new one.

Anyway I've actually rejected the binary that got approved this afternoon, and have re-submitted with these new values so that user's don't get an ugly app :)

Hope this helps.